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kernel: backport a few PHY layer fixes from upstream 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43776
owl
Felix Fietkau 2014-12-26 12:36:30 +00:00
parent d7320d2d89
commit a96afecf5c
2 changed files with 103 additions and 0 deletions
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35
target/linux/generic/patches-3.14/072-net-phy-Check-for-aneg-completion-before-setting-sta.patch Normal file
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@ -0,0 +1,35 @@
From: Balakumaran Kannan <kumaran.4353@gmail.com>
Date: Thu, 24 Apr 2014 08:22:47 +0530
Subject: [PATCH] net phy: Check for aneg completion before setting state to
PHY_RUNNING
phy_state_machine should check whether auto-negotiatin is completed
before changing phydev->state from PHY_NOLINK to PHY_RUNNING. If
auto-negotiation is not completed phydev->state should be set to
PHY_AN.
Signed-off-by: Balakumaran Kannan <kumaran.4353@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -744,6 +744,17 @@ void phy_state_machine(struct work_struc
break;
if (phydev->link) {
+ if (AUTONEG_ENABLE == phydev->autoneg) {
+ err = phy_aneg_done(phydev);
+ if (err < 0)
+ break;
+
+ if (!err) {
+ phydev->state = PHY_AN;
+ phydev->link_timeout = PHY_AN_TIMEOUT;
+ break;
+ }
+ }
phydev->state = PHY_RUNNING;
netif_carrier_on(phydev->attached_dev);
phydev->adjust_link(phydev->attached_dev);

68
target/linux/generic/patches-3.14/073-net-phy-resume-phydev-when-going-to-RESUMING.patch Normal file
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@ -0,0 +1,68 @@
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -690,7 +690,7 @@ void phy_state_machine(struct work_struc
struct delayed_work *dwork = to_delayed_work(work);
struct phy_device *phydev =
container_of(dwork, struct phy_device, state_queue);
- int needs_aneg = 0, do_suspend = 0;
+ bool needs_aneg = false, do_suspend = false, do_resume = false;
int err = 0;
mutex_lock(&phydev->lock);
@@ -702,7 +702,7 @@ void phy_state_machine(struct work_struc
case PHY_PENDING:
break;
case PHY_UP:
- needs_aneg = 1;
+ needs_aneg = true;
phydev->link_timeout = PHY_AN_TIMEOUT;
@@ -732,7 +732,7 @@ void phy_state_machine(struct work_struc
phydev->adjust_link(phydev->attached_dev);
} else if (0 == phydev->link_timeout--) {
- needs_aneg = 1;
+ needs_aneg = true;
/* If we have the magic_aneg bit, we try again */
if (phydev->drv->flags & PHY_HAS_MAGICANEG)
break;
@@ -770,7 +770,7 @@ void phy_state_machine(struct work_struc
netif_carrier_on(phydev->attached_dev);
} else {
if (0 == phydev->link_timeout--)
- needs_aneg = 1;
+ needs_aneg = true;
}
phydev->adjust_link(phydev->attached_dev);
@@ -806,7 +806,7 @@ void phy_state_machine(struct work_struc
phydev->link = 0;
netif_carrier_off(phydev->attached_dev);
phydev->adjust_link(phydev->attached_dev);
- do_suspend = 1;
+ do_suspend = true;
}
break;
case PHY_RESUMING:
@@ -855,6 +855,7 @@ void phy_state_machine(struct work_struc
}
phydev->adjust_link(phydev->attached_dev);
}
+ do_resume = true;
break;
}
@@ -862,9 +863,10 @@ void phy_state_machine(struct work_struc
if (needs_aneg)
err = phy_start_aneg(phydev);
-
- if (do_suspend)
+ else if (do_suspend)
phy_suspend(phydev);
+ else if (do_resume)
+ phy_resume(phydev);
if (err < 0)
phy_error(phydev);